Powershell中阵列的Appcmd语法

Question

I'm trying to run the following to set the handler mappings for each of our websites using appcmd in powershell:

$websites = Get-ChildItem IIS:\Sites
foreach ($Site in $WebSites) {
C:\Windows\system32\inetsrv\appcmd set config "$site" /section:handlers -accessPolicy:"Read,Script,Execute"}

However I'm getting this error message for each site as it iterates through them:

ERROR ( message:Cannot find SITE object with identifier "Microsoft.IIs.PowerShell.Framework.ConfigurationElement". )

What am I doing wrong? I tried using a property of the $sites variable:

$site.name

but even that doesn't work. I'm at a loss. Thanks!

Answer 1

As you've encountered, "$site" doesn't expand to the name of the website, but to the type of object that $site refers to. "$site.name" is not way off, but in fact:

"$site"      -eq "Microsoft.IIs.PowerShell.Framework.ConfigurationElement"
"$site.name" -eq "Microsoft.IIs.PowerShell.Framework.ConfigurationElement.name"

The PowerShell parser stops recognizing the variable name at . , and treats the rest ( ".name" ) as a string.

You can use the $() sub-expression operator to escape an entire statement:

"Name: $($site.name)"

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You can do anything you like inside $() and nest them all you like:

"Random Site Name: $("$(Get-Random -Maximum ([int32]::MaxValue)){0}" -f $site.name)"